How a Shopify mobile app stays in step with the store
One catalogue, two front doors
Shopify mobile app integration: the app reads your store, it does not copy it.
There is no second catalogue to maintain and nothing to keep in sync by
hand. Products, collections, prices, stock levels and customer accounts
are read from Shopify, and the order the app produces is a Shopify order
like any other.
What is read from Shopify, and when
The short answer to Shopify mobile app real time sync: the app asks
Shopify at the moment somebody looks, so a price change is live the next
time a screen is opened rather than the next time somebody remembers to
push a button.
Products and collections
Shopify product sync and collection sync are the same mechanism: the
app requests them and shows what Shopify returns. Add a product in
Shopify and it appears; archive one and it stops appearing. Titles,
images, variants, options and metafields all come from the same place
your web store reads them from.
Inventory and prices
Shopify inventory sync happens on read rather than on a schedule, which
is what prevents the failure everybody fears — the app selling
something the store no longer has. Prices, compare-at prices and
currency follow the same path.
Customers and orders
Shopify customer sync means one account: somebody who registered on the
web store signs in to the app with the same details and sees the same
order history. Shopify order sync runs the other way — an order placed
in the app is a Shopify order, visible in the same admin, counted in
the same reports.
Checkout is Shopify’s own
This is the part worth being unambiguous about. Shopify mobile app
checkout is Shopify Checkout — the same page, the same payment
providers, the same fraud analysis, the same compliance. We do not
handle a card number and neither does the app.
What that buys you beyond peace of mind: every discount code, shipping
rate, tax rule and Shopify Function you have configured applies without
being rebuilt. Shopify mobile app payment integration means Apple Pay
and Google Pay inside the app, which is the fast checkout that removes
the step where most mobile purchases are abandoned.
What we ask Shopify for, and what we do not
-
Read access to the catalogue. Products, collections,
inventory levels and prices — everything the app has to display. -
Customer accounts. So one person is one customer
across the web store and the app rather than two records that never
meet. -
Order creation. Through Shopify’s own checkout, so
the order lands in your admin with the source recorded. -
Nothing else. No payout access, no staff account, no
ability to change your theme or your settings. A Shopify app
integration should ask for what it needs and stop, and this one is
auditable in your admin at any time.
What happens when the store changes
The commonest worry is that the app freezes the store as it was on the
day it launched. It does not, and the distinction is between content and
structure.
Changes that need nothing
New products, new collections, price changes, stock movements, new
images, new customers, discount codes, shipping rates. All of it is
read live. Change your Shopify theme and the app is unaffected,
because the app was never reading your theme.
Changes that need a release
A new screen, a rearranged home page, a new feature. These are app
changes rather than store changes, and they go out in a release —
which is also why the home screen is built from blocks you can
rearrange rather than hard-coded.
Changes that need a conversation
Moving off Shopify, or a subscription or B2B model the app was not
built around. Rare, and we would rather hear about it early than
discover it in a support ticket.
Questions about integration
How does Shopify synchronization work?
The app reads Shopify directly rather than holding its own copy. Products, collections, inventory, prices and customer accounts are requested when a screen is opened, so what the app shows is what the store currently says. There is nothing to sync manually and no second catalogue to maintain.
Does the app use the same checkout customers already trust?
Yes — Shopify Checkout, the same one your web store uses, with the same payment providers and the same discount, tax and shipping rules. Nothing about payment is rebuilt and no card details pass through us.
What happens to the app if I change my Shopify theme?
Nothing. The app reads your products and collections, not your theme, so a redesign of the web store leaves the app exactly as it was.
Can the app show a product that is out of stock?
It shows what Shopify reports, including the stock level, so an item that has sold out shows as sold out. Because inventory is read at the moment of display rather than on a nightly schedule, the app cannot be selling something the store already sold.
Do orders from the app appear in my Shopify admin?
They are Shopify orders, in the same list as every other order, with the sales channel recorded so you can tell how much the app is producing. Reports, exports and your accounting integration all see them without any extra setup.
The technical answer, for whoever asks for it
Usually a developer or an agency already working on the store. Here it
is without the marketing layer.
Which Shopify API
The Storefront API for the catalogue and the cart, and the Customer
Account API for sign-in and order history. Shopify mobile app API
integration through the documented public interfaces — no
scraping, no private endpoints, nothing that breaks when Shopify ships
a release.
The mobile SDK
Shopify’s own mobile SDK for checkout, which is why Shopify
mobile app checkout is genuinely Shopify Checkout rather than a
re-creation of it. Card details never pass through the app or through
us.
Shopify Functions
Discount, shipping and payment customisations you have already written
apply in the app because they run at checkout. Shopify Functions in a
mobile app need no separate implementation — if it works on the
web store it works here.
Data sync, precisely
Shopify mobile app data sync is read-through rather than replicated:
the app requests on display and caches briefly for speed. Nothing is
held long enough to go stale, which is the failure mode a nightly sync
produces.
Ecommerce integration beyond Shopify
An ERP, a loyalty platform, a subscription app, a WhatsApp channel.
Shopify ecommerce integration of that kind is possible and is scoped
per project — raise it early, because it changes the shape rather
than the size of the work.
Integration services as a piece of work
If you already have an app and need Shopify app integration services
on it, that is a separate engagement and we take it selectively.
Tell us what
exists and we will say whether we are the right people.
Ask us the awkward integration question.
Subscriptions, bundles, B2B pricing, an ERP in the middle — tell us what is unusual about your store and we will tell you straight whether it fits.